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The list of non-routable IP ranges (both the Network ID and the Mask) were completely wrong... and different from every other CompTIA slide I've ever seen (which I know to be correct).

Thanks! I created a ticket. We'll see if they respond, but I have done what I can, and corrected the slides for myself.

Just so you know Steve, Microsoft Learn (or whatever they are calling themselves today) is waiving the fee for the foreseeable future.

I am teaching this class and discovered a glaring mistake in the slides. Who can I report this to?

I never earned it because I have been a Microsoft Certified Trainer for 17 years, and that was always enough for me. Now that I am teaching more CompTIA classes I started looking into it late last year, only to discover that it is being retired. I suppose that means I will have to maintain my...